Cutting corrugated roofing

[sodamo]

Have the opportunity to get some 29 gauge galvalume roofing panels for my carport project.
Challenge is the panels are 12ft and I’m planning on 26 ft , meaning I would need to cut 4 panels 3 times resulting in 16 3ft sections.
What would be best way to make such cuts resulting in nice clean edges that would be exposed? Can I cut all 4 panels together or just individually?

I could just buy 26ft panels, but plus $2/ft more make the galvalume deal attractive.

 

[raptorterry]

Have the opportunity to get some 29 gauge galvalume roofing panels for my carport project.
Challenge is the panels are 12ft and I’m planning on 26 ft , meaning I would need to cut 4 panels 3 times resulting in 16 3ft sections.
What would be best way to make such cuts resulting in nice clean edges that would be exposed? Can I cut all 4 panels together or just individually?

I could just buy 26ft panels, but plus $2/ft more make the galvalume deal attractive.

I've got that same roof. We cut it using a metal nibbler. I cut them one at a time because our cut end was going to be hidden.
I loved the galvalume so much I have it as my ceiling in my shop too.

 

[oosik]

I had to cut all my aluminum roofing with a thin carbide blade on my Skill saw. The cut were fine. I cut four panels at a time.

 

[BrokenTrack]

I use a thin cut off wheel on a hand grinder. Cut all four at once if you want. Just clamp them so that they do not move while cutting them.

 

[Roadworthy]

If you have access to or could rent or borrow a plasma cutter that might work for you. The sheet metal nibbler would probably be a less expensive alternative but I don't think the edges would be quite as nice.

 

[Billrog]

Probably a metal abrasive blade in a skill saw would give the cleanest cut 1 at a time or clamp them and cut slow so you don't burn the saw motor out.

 

[Clint S]

I cut it with a woodblade turned backwards in a circular say. Wear hearing protection and eye protection. Clamp it down

 

[Jstpssng]

I used the metal abrasive blade in my skilsaw as mentioned above, with the roofing upside down on two by fours to keep from crushing or scratching it.

 

[sodamo]

Thanks guys.
Leaning toward circular saw. I have a nice Rigid worm drive. Just need to decide which blade. Would prefer cutting all 4 at once. Going slow not a problem. Hoping for edge that requires least dressing before painting. One edge would be exposed but might cover with an 90° edge trim. The other edge would most likely be visible inside carport, unless it lands on purlin.

 

[oosik]

I turned the four sheets over and cut them all at once from the bottom side. If there were going to be any "raggie stuff" I wanted it to be on the bottom. It turned out good. If you do end up using some kind of blade in your worm drive - use eye protection and a FULL face shield. And a work jacket. I picked tiny, tiny chunks of AL out of my hide for a day or so. A little festered red spot would show up - pick at it with a sharp pointed knife. Dig out a tiny chunk of AL.

Big mistake on my part - I only wore a short sleeve T-shirt. I DID wear safety glasses and a full face shield.